Heating stove or furnace.



No. 757,602. i v PATENTBD APR. 19. 1904.

' R. W. DODGE. HEATING STOVE'UR FURNAGE.

APPLzoAnoN zum: JUNE. 23,1903. l

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wifgesses l No; '157,602.- Y PATENTE) APR. '19, 1904.'

Rl Wl HEATING STOVB 0R IE'URNIJHT.r

APPLIUAHoN FILED .Imm 221.1903? j Y 1 z snare-#SHEET s.

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smoke-flue 16 leads, Vas shown.

Patented April 19, 1904.

PATENT om@ ROBERT 'W 'DODGE -FYKANSS crm; Missouar.,

HEATING srl-ove on P URNAGE.` y

' srncrrrcnmr'oivferming part-Genieten patent No'. 757,602, datednprn19,v 1904. 4

f K 4 i Application filed JuneZS, 1,9031 Serial No.162.813,".(N70-m0de10/ I d Ta @ZZ whom, t may con/cern,.- 1

Be it known that I, ROBERT W. DODGE, a v, citizen of the United States',residing at Kansas City, in the county of Jackson-and- State ofMissouri, have invented a vnew and useful Heating Stove or Furnace,pofwhich thefol-. lowing is a specication. f i

. This invention relates to heating` ,stoves or furnaces, and has forits object to simplify and improve the construction of such devices andeffect areduetion in thefoonsurnption of fuel and an increase in thevheatgenerated;` and the invention consists in certain novel features ofconstruction, as hereinafter shown and described, and specified in theclaims fol-f lowing. f, V Y

In the drawings illustrative of the invention, in which correspondingparts are denoted by like designating characters, Figure 1 is averticalsectional side elevation of the device when employed as a heating-stove;Fig. 2 is a plan'viewwiththe dome removed.l Fig.43' is a transversesection on the line 53 3 of Fig. 1'. Fig. 4 is a plan view of the gratedetached. Fig. 5 is a side elevation of they stove in the Y reverseposition to that shown in Fig. 1 with-v inclosing vjacket or shell invertical section as employed when device `is used asa furnace.- Fig. 6is a transverse section on the Aline 5 5 of Fig. 1. Fig. 7 is asectionaldetail of the lower portion of the lower shell-section, illus-y tratingmore fully'the mechanism for rotating the fire receptacle and grate.

The improvement herein disclosed may be applied to any size of heatingstoveor furnace,

and for the'purpose of illustration kitis shown applied to aheating-stove of` ordinary proporl tions having an .inclosingg lowervshell-sectionA 10, provided with the nre-receptacle'111 and' with agrate 12 and ash-pit 13 in the usual re lative locations.y The lowersection 10 will preferably be of cast-iron andlwill .be surmountedwith-an uppershell-section 14, preferably of sheet-steeland supported,asi-at 15,; upon the lower section and from which the MlditionalAsmoke-exits 17 may be providedv t'o V.provideV for the discharge atdifferent points or for ay plurality of discharge-nues, if required.;VThe; upper edge of the lower section 10'isformed- With-aninwardlyextending annular ange La 18, in .which spaced socketsarearran'ged to' `receive hearing-halls` V19, upon whichanoutwardlyextendingiiange 2O on theupper edge of theflre-receptaolellwrestsfsotllat the iirereceptacle may he rotated asrequired and withtlie'mnim'u'miof friction.: L

l l The annular lflange 21,-betweenthe ash-.pit

13 andthe space'surroundingthe fire-cham ,ben isv providedwith spacedsockets to receive Ebearing-balls 22, -upon whichmhef outer edge of the'grate 112 rests yto provide for the "easy` fand free rotation of thegrate.

.The grate 12 is provided with anannular gear-rack 23, andtheVfire-chamber 11 is like-1 wise provided with aA correspondingannulargear-rack 24 in' vertical alinementl above? and vspacedfrorn the rack23, so'that. one gear-A Y wheel 525,-suitably mounted lfor rotation upona shaft 26 within the shell 10, will engage both racks, as indicatedin'Figfs. 1'and`7.

A -The grate 12 will be formed with a central..

aperture 55,- beneath which a grate-'section 50 is slidably supported byways or guides 51,v so that .a relatively large opening may-be,

jformed in the gratie to providemeans for the removal ofthe largerclinkers and to assist in controllingthe `lourning fuel.

The gear-wheel-25 will be supported-inV suitable standards 27 andprovided exteriorlyfof fthe casingwith means 28 for the'attachment@ ofan' operating handle or wrench, and when thus arranged it will loevobvious vthat the rotation ofthefhandlecwill cause vthe correspondingrotation of the lire-chamher'and grate inppposite directions.

Y, 'Between the annular gear 24 anddthe'outer Vwall of the lire-chamberany annular track 29 isformed, the track providinga surface upon whichcams. 31 act WhenTOtated to bodily'. elevate the fire-chamber andprovide means for the removal of clinkers,A ashes, `and other forei,mmatter and obstructions.

210 as shown, through. which their n parts may yhe reached and theclinlers removedvwhen the fire-chamber is elevated. A v j Thedoor32 willhe provided with draftslides. 33 ,opposite vthe aShpit, as shown inFigs'and?. 1 f" I i The elevating-cams 3l Y l To this end aflarge door32 is provided in the section I l TOO will preferably vhe located atYequidistant. points upon opposite.

sides of the shell and far enough from the gear 25 to avoid interferencetherewith and will be supplied with sockets to receive operating-cranks,as shown.

The upper shell 14 is surmounted by'anvaln'- l nular top member 34,centrally from which a Between the shell 14 and magazine 35 is dis-lposed an annular hot-air drum 37, leaving annular air-spaces 38 39,respectively, between the shell and drum and between the drum andmagazine, as shown.

The top member 34 is provided with a plurality of spaced apertures 40,and covering these apertures is an annular damper-plate 41, havingapertures 42, adapted to register with the apertures 40 in the covermember when the annular plate is rotated in one direction andcut off theapertures when rotated in the opposite direction, the plate thus forminga cut-,off or damper to regulate the -flow of the air from the drum. Theplate 41 may be operated by any suitable means, such as by a handle 43,extending from one side, as shown.

Leading inwardly through the upper sectionv 14 are tapered air-feedpipes 49 50, disposed at opposite sides and with their contracted innerends or 'nozzles 51 52 turned downwardly and discharging in oppositedirections above the fire in the {ire-receptacle, as shown in Figs. 1and 3. By this simple means a supply of fresh air will be introduced inthe form of jets moving in opposite directions above the center of thefire in the firechamber, and thus su pplying fresh oxygen where mostrequired and greatly accelerate the combustion and completing theconsumption of any particles of combustible matter which may escape there in the body of the fire-chamber.

The pipes 49 50, passing above the fire in the fire-chamber, are highlyheated thereby, and consequently highly heat the air passing throughthem and discharge it in a very highly-heated state and in the bestpossible condition to produce therequisite supplemental and acceleratedcombustion.

The tapered pipes 49 50 are very important features of the invention andadd materially to the value and effectiveness of the operation. Theouter or intake ends of the feed-pipes 49 50 will preferably be providedwith closing dampers or slides 53 54 to regulate the iow therethrough. u

provided with a plurality of apertures 56 to provide vents for theescape of gas arising from the fuel in the magazine, which thus entersthe air-space 39 and is drawn from thence downward into the fire andthere consumed and prevented fromescaping into the room.

This is a very important feature of the invention and overcomes a veryserious objection to many forms of magazine-stoves, as in many of thesestoves gas accumulates in the magazines, especially if the fuel runslow, and escapes into the room. With the arrangement herein disclosed,however, all such accumulations of gas are readily disposed of andconsumed and are thus not only prevented from l escaping into the room,but add to the heatimparting qualities of the stove.

Leading into the closed lower end of the drum 37 are cold-air ducts 4445, the ducts eX- tending downward through the flanges 18 and 21 and thebottom of the ash-pit and opening near the iioor beneath the stove, asshown. As many of these airfducts may be employed as required; butgenerally two will be sulficient, as shown, to secure the necessaryuniform distribution.

Above the shell 14 is a dome or top 46, from which the nal discharge-nue47 leads, as shown, and supported above this liue is a fan-wheel 48 inposition to be rapidly rotated by the rising currents of air anddistribute them uniformly in all directions.

The fan-wheel 48 will be increased or decreased in size with theincrease or decrease in the size of the stove or furnace and may beformed with as many wings or blades as required. The fan-wheel will alsoserve as an indicator of the action of stove or furnace, disclosing byits speedv the volume of the hot air rising through the discharge 47, asthe greater the heat the greater will be the volume of air passingthrough.

The discharge-flue 47 may be conducted to any required distance and inany required direction and may be conducted to other rooms, if required,to supply the heated air to any number of rooms; but wherever and towhatever distance the flue may be conducted the fan member will beplaced opposite the final outlet. By this arrangement it will be obviousthat the heat rising from the air-drum 37 will highly heat the airtherein and cause it to escape through the apertures 40 42 and throughthe dome 46 and discharge-flue 47 .to rotate the current-indicatingVfan-wheel 48, and this upward discharge of hot air will induce an upwardflow of the cooler air from near the ioor into Vthe drum, and so oncontinuously, thoroughly and uniformly distrib uting the heated air andproducing a uniform and equable temperature throughout the room or roomsof the building.

When it is desired to shake the grate, a few rapid revolutions of thecrank 28 will thor- Near its upper end the magazine 35 will be oughlyaccomplish this result by rotating both the grate and fire-receptacle orbasket in respectively opposite directions, which will produce a doublyefficacious result, thereby thoroughly and rapidly precipitating the ashes and clinkers and other unconsumed matter. 1f clinkers accumulate,they can be readily IOO IIO

removed, as above notedfby rotating the cams 31, and thereby elevatingthe basket, leaving a gap between its loweredge and the grate throughwhich the clinkers and other accumulations may be readily removed.

The nozzle-pipes 4:9 50 are an important adjunct to the device, as theysupply the fresh oxygen at the exact point required to produce the bestresults and edect a complete combustion of the unconsumed particles ofcarbon and eifectually prevent the formation of smoke or the escape ofcombustible gases, so' that nothing but a small amount of incombustiblegases escape by the lues 16 or 17. The outer portions may be of anyfanciful shape or design and ornamented in any desired manner, partsbeing nickel-plated or otherwise ornamented or protected.

When employed as a furnace, an outer shell or hood 55 will be employed,as in Fig. e, and when this is done the dome will be dispensed with, asshown; but otherwise there will be no change in the stove. By this meansthe stove may be set up in the basement or furnace-room and the usualconductor-fines connected therewith, the large volume ofV heat beingample to supply the fines, as will be obvious. doors corresponding toand located opposite the. doors and other openings in the stove, so

that the presence of the hood or shell does not interfere with theordinary operations of the stove, and the operating-handles 28 willlikewise pass outwardly through the outer shell.

The stoves may be manufactured in any size or ofV any suitable materialy and may be eni-v ployed in all localities where other makes of stovesor furnaces are adapted to be employed.

If required, a vent-opening covered by a movable closure 56 may bearranged in the section 14 of the casing. By this simple arrangement itwill be noted the fire-receptacle and grate can be very easily andquickly removed for renewal or repairs or another form of grate orhre-receptacle may be substituted for the one in the shell when thequality or kind of fuel is'to be changed. Thus the stove may be quicklyand easily changed to adapt it to hard or soft coal or to coarse or finecoal, as required.. Thus by furnishing duplicate grates of different"mesh the same stove may be employed for all the different kinds andsizes of fuel. This is an important advantage and adds materially to thevalue and efliciency of the device.

The lower shell-section 10, together with the grate, lire-receptacle,and the Lnoze or lower discharge end of the magazine, will preferably beof cast-iron, while the upper shell-section, dome, and upper portion ofthe magazine will preferably be of sheet-steel of suficient gage7 towithstand the heat and other strains to which it will be subjected. Thedevice can thus be very durably constructed and all the parts disposedto uniformly The shell 55 will be provided withV resist the strains towhich they will be subjected.

The dome 46 will preferably be arranged to swing laterally, as by a pin52, to expose the damper il and fuel-inlet 36, as shown.

Having thus described my invention, what I claim is- 1. In aheating-stove, an outer shell, a rereceptacle within said shell, reversely-disposed tapering air-feed'pipes leading through said shell andcurving downwardly and terminating above the fire in the receptacle, anddischarging in opposite directions, and controlling-valves at the inletends ofsaid air-pipes, substantially as described.

3. In a heating stove or furnace, a lower shell-section havingahrc-receptacle detachably supported therein, a grate mov ably supportedbelow the fire-chamber, an upper shellsection detachably supported uponthe lower shell-section, and reversely-disposed tapering air-feed pipesleading through said upper shellsection and curving downwardly andterminating above the lire and discharging in opposite directions,substantially as described.

4. In a heating stove or furnace, a lower shell-section having alire-receptacle detachably'supported therein, a grate movably supportedbelow the lire-chamber an upper shellsection detachably supported uponthe lower shell-section, reversely-disposed tapering airfeed pipesleading through said upper shellsection and curving downwardly andterminating above the lire and discharging in opposite directions,- andcontrolling-valves at the inlet-ends of said air-feed pipes,substantially as described. Y'

5. In a heating-stove, an inclosing shell, a fire-chamber and grateinthe lower part of said shell, an annular drum supported in said shelland spaced therefrom above said rechamber, cold-air iues leading to saiddrum, means for discharging the heated air from said drum,reversely-disposed tapering air-feed pipes leading through said shelland curving downwardly and terminating above the fire- `chambenand afuel-,magazine within said lOO

